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Simplifying 2.2x2 + -4x + 4 = 0 Reorder the terms: 4 + -4x + 2.2x2 = 0 Solving 4 + -4x + 2.2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2.2 the coefficient of the squared term: Divide each side by '2.2'. 1.818181818 + -1.818181818x + x2 = 0 Move the constant term to the right: Add '-1.818181818' to each side of the equation. 1.818181818 + -1.818181818x + -1.818181818 + x2 = 0 + -1.818181818 Reorder the terms: 1.818181818 + -1.818181818 + -1.818181818x + x2 = 0 + -1.818181818 Combine like terms: 1.818181818 + -1.818181818 = 0.000000000 0.000000000 + -1.818181818x + x2 = 0 + -1.818181818 -1.818181818x + x2 = 0 + -1.818181818 Combine like terms: 0 + -1.818181818 = -1.818181818 -1.818181818x + x2 = -1.818181818 The x term is -1.818181818x. Take half its coefficient (-0.909090909). Square it (0.8264462808) and add it to both sides. Add '0.8264462808' to each side of the equation. -1.818181818x + 0.8264462808 + x2 = -1.818181818 + 0.8264462808 Reorder the terms: 0.8264462808 + -1.818181818x + x2 = -1.818181818 + 0.8264462808 Combine like terms: -1.818181818 + 0.8264462808 = -0.9917355372 0.8264462808 + -1.818181818x + x2 = -0.9917355372 Factor a perfect square on the left side: (x + -0.909090909)(x + -0.909090909) = -0.9917355372 Can't calculate square root of the right side. The solution to this equation could not be determined.
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